LAN Uplinks Manager

The LAN Uplinks Manager provides a single interface where you can configure the connections between Cisco UCS and the LAN. You can use the LAN Uplinks Manager to create and configure the following:

Ethernet switching mode

Uplink Ethernet ports

Port channels

LAN pin groups

Named VLANs

Server ports

QoS system classes

Some of the configuration that you can do in the LAN Uplinks Manager can also be done in nodes on other tabs, such as the Equipment tab or the LAN tab.

Launching the LAN Uplinks Manager

Procedure

Step 1

In the Navigation pane, click the LAN tab.

Step 2

On the LAN tab, click the LAN node.

Step 3

In the Work pane, click the LAN Uplinks Manager link on the LAN Uplinks tab.

The LAN Uplinks Manager opens in a separate window.

Changing the Ethernet Switching Mode with the LAN Uplinks Manager

Important:

When you change the Ethernet switching mode, Cisco UCS Manager logs you out and restarts the fabric interconnect. For a cluster configuration, Cisco UCS Manager restarts both fabric interconnects sequentially. The second fabric interconnect can take several minutes to complete the change in Ethernet switching mode and become system ready.

Creating a Port Channel with the LAN Uplinks Manager

From the pop-up menu, select one of the following fabric interconnects where you want to create the port channel:

Fabric Interconnect A

Fabric Interconnect B

Step 4

In the Set Port Channel Name page of the Create Port Channel wizard, do the following:

Complete the following fields:

Name

Description

ID field

The identifier for the port channel.

Name field

A user-defined name for the port channel.

This name can be between 1 and 16 alphanumeric characters. You cannot use spaces or any special characters, and you cannot change this name after the object has been saved.

Click Next.

Step 5

In the Add Ports page of the Create Port Channel wizard, do the following:

In the Ports table, choose one or more ports to include the port channel.

Click the >> button to add the ports to the Ports in the port channel table.

You can use the << button to remove ports from the port channel.

Note

Cisco UCS Manager warns you if you select a port that has been configured as a server port. You can click Yes in the dialog box to reconfigure that port as an uplink Ethernet port and include it in the port channel.

Adding Ports to a Port Channel with the LAN Uplinks Manager

Right-click the port channel to which you want to add ports and choose Add Ports.

Step 4

In the Add Ports dialog box, do the following:

In the Ports table, choose one or more ports to include the port channel.

Click the >> button to add the ports to the Ports in the port channel table.

You can use the << button to remove ports from the port channel.

Note

Cisco UCS Manager warns you if you select a port that has been configured as a server port. You can click Yes in the dialog box to reconfigure that port as an uplink Ethernet port and include it in the port channel.

Creating a Named VLAN with the LAN Uplinks Manager

In a Cisco UCS instance with two switches, you can create a named VLAN that is accessible to both switches or to only one switch.

Important:

You cannot create VLANs with IDs from 3968 to 4047. This range of VLAN IDs is reserved.

The VLAN name is case sensitive.

Procedure

Step 1

In the LAN Uplinks Manager, click the VLANs tab.

Step 2

On the icon bar to the right of the table, click +.

If the + icon is disabled, click an entry in the table to enable it.

Step 3

In the Create VLAN dialog box, complete the following fields:

Name

Description

VLAN Name/Prefix field

For a single VLAN, this is the VLAN name. For a range of VLANs, this is the prefix that the system uses for each VLAN name.

This name can be between 1 and 16 alphanumeric characters. You cannot use spaces or any special characters, and you cannot change this name after the object has been saved.

Configuration options

You can select:

Common/Global—The VLANs apply to both fabrics and use the same configuration parameters in both cases

Fabric A—The VLANs only apply to fabric A.

Fabric B—The VLAN only apply to fabric B.

Both Fabrics Configured Differently—The VLANs apply to both fabrics but you can specify different VLAN IDs for each fabric.

VLAN IDs field

To create one VLAN, enter a single numeric ID. To create multiple VLANs, enter individual IDs or ranges of IDs separated by commas. A VLAN ID can:

Be between 1 to 3967

Be between 4049 to 4093

Overlap with other VLAN IDs already defined on the system

For example, to create six VLANs with the IDs 4, 22, 40, 41, 42, and 43, you would enter 4, 22, 40-43.

Important:

The VLAN IDs from 3968 to 4048 are reserved. You cannot specify an ID within this range.

Check Overlap button

Click this button to determine whether the VLAN ID overlaps with any other IDs on the system.

Step 4

Click OK.

Cisco UCS Manager adds the VLAN to one of the following VLANs nodes:

The LAN Cloud > VLANs node for a VLAN accessible to both fabric interconnects.

The Fabric_Interconnect_Name > VLANs node for a VLAN accessible to only one fabric interconnect.

Deleting a Named VLAN with the LAN Uplinks Manager

If Cisco UCS Manager includes a named VLAN with the same VLAN ID as the one you delete, the VLAN is not removed from the fabric interconnect configuration until all named VLANs with that ID are deleted.

Procedure

Step 1

In the LAN Uplinks Manager, click the VLANs tab.

Step 2

Click one of the following subtabs, depending upon what type of VLAN you want to delete:

Configuring QoS System Classes with the LAN Uplinks Manager

The type of adapter in a server impacts the maximum MTU supported. Network MTU above the maximums may cause the packet to be dropped for the following adapters:

The Cisco UCS CNA M71KR adapter supports a maximum MTU of 9216.

The Cisco UCS 82598KR-CI adapter supports a maximum MTU of 14000.

Procedure

Step 1

In the LAN Uplinks Manager, click the QoS tab.

Step 2

Update the following properties for the system class you want to configure to meet the traffic management needs of the system:

Note

Some properties may not be configurable for all system classes.

Name

Description

Enabled check box

If checked, the associated QoS class is configured on the fabric interconnect and can be assigned to a QoS policy.

If unchecked, the class is not configured on the fabric interconnect and any QoS policies associated with this class default to Best Effort or, if a system class is configured with a Cos of 0, to the Cos 0 system class.

Note

This field is always checked for Best Effort and Fibre Channel.

Cos field

The class of service. You can enter an integer value between 0 and 6, with 0 being the lowest priority and 6 being the highest priority. We recommend that you do not set the value to 0, unless you want that system class to be the default system class for traffic if the QoS policy is deleted or the assigned system class is disabled.

Note

This field is set to 7 for internal traffic and to any for Best Effort. Both of these values are reserved and cannot be assigned to any other priority.

Packet Drop check box

If checked, packet drop is allowed for this class. If unchecked, packets cannot be dropped during transmission.

This field is always unchecked for the Fibre Channel class, which never allows dropped packets, and always checked for Best Effort, which always allows dropped packets.

Weight drop-down list

This can be:

An integer between 1 and 10. If you enter an integer, Cisco UCS determines the percentage of network bandwidth assigned to the priority level as described in the Weight (%) field.

best-effort.

none.

Weight (%) field

To determine the bandwidth allocated to a channel, Cisco UCS:

Adds the weights for all the channels

Divides the channel weight by the sum of all weights to get a percentage

Allocates that percentage of the bandwidth to the channel

MTU drop-down list

The maximum transmission unit for the channel. This can be:

An integer between 1500 and 9216. This value corresponds to the maximum packet size.

fc—A predefined packet size of 2240.

normal—A predefined packet size of 1500.

Note

This field is always set to fc for Fibre Channel.

Multicast Optimized check box

If checked, the class is optimized to send packets to multiple destinations simultaneously.

Note

This option is not applicable to the Fibre Channel.

Step 3

Do one of the following:

Click OK to save your changes and exit from the LAN Uplinks Manager.

Click Apply to save your changes without exiting from the LAN Uplinks Manager.